All lessonsLevel 3 · Lesson 3.4

Level 3 · Lesson 3.411 minutes

Fixed assets and depreciation

Decide when to capitalize a purchase, calculate straight-line depreciation, and read book value on the balance sheet.

  • Principles:
  • Historical cost
  • Matching
  • Materiality

Capitalize or expense?

A fixed asset is something the business buys to use for more than a year, like a truck, a commercial mower or a trailer. Instead of expensing the full cost when it's bought, you capitalize it: record it as an asset at its cost, then spread that cost over the years it helps earn revenue. That spreading is depreciation, and it follows the matching idea.

Small, short-lived purchases, like hand tools or a $40 hose, are simply expensed. Most businesses set a capitalization threshold, a dollar amount below which items are expensed. For taxes, the IRS has a de minimis safe harbor election with its own limits; check the current rules with a tax professional.

Journal entryJan 2 Buy a commercial mower
AccountDebit (Dr)Credit (Cr)
Equipment$12,600.00
Business Checking$12,600.00
Total Balanced$12,600.00$12,600.00

Are you Increasing or Decreasing?

The T, debit side and credit side
DebitCredit
LiabilityAsset
EquityDraw
RevenueExpense

− To decrease an account, put it on the opposite side.

Business Checking goes down: press − and find Asset on the credit side.

Straight-line depreciation

Straight-line depreciation expenses the same amount every year. You need three things: the cost, the salvage value (what you expect to get for it at the end), and the useful life.

Evergreen's mower cost $12,600, should sell for about $600 at the end, and should last 5 years.

Formula

Annual depreciation = (Cost − Salvage value) ÷ Useful life = ($12,600 − $600) ÷ 5 = $2,400 a year, or $200 a month

Journal entryJan 31 Record one month of depreciation on the mower
AccountDebit (Dr)Credit (Cr)
Depreciation$200.00
Accumulated Depreciation$200.00
Total Balanced$200.00$200.00

Are you Increasing or Decreasing?

The T, debit side and credit side
DebitCredit
AssetLiability
DrawEquity
ExpenseRevenue

+ To increase an account, put it on its normal side.

Depreciation goes up: press + and find Expense on the debit side.

Accumulated depreciation and book value

Depreciation never credits the Equipment account directly. It credits Accumulated Depreciation, a contra-asset with a normal credit balance. That way the balance sheet keeps showing the original cost and, beside it, how much has been used up.

Book value is cost minus accumulated depreciation. It is not what the asset would sell for today.

Formula

Book value = Cost − Accumulated depreciation

End of yearDepreciationAccumulated depreciationBook value
12,4002,40010,200
22,4004,8007,800
32,4007,2005,400
42,4009,6003,000
52,40012,000600
The Balance sheet screen in the Leah Books sample books, for the sample company Evergreen Landscaping (opens the full-size screenshot)
Under Fixed assets on the Balance sheet, Equipment shows cost and Accumulated Depreciation shows as a negative amount below it. Together they give book value.

Other methods, and tax depreciation

Double-declining balance front-loads depreciation. Take twice the straight-line rate (2 ÷ 5 years = 40%) and apply it to the book value at the start of each year, ignoring salvage in the rate but never depreciating below salvage. Year 1 for the mower would be $12,600 × 40% = $5,040.

Tax depreciation follows its own rules, such as MACRS, Section 179 and bonus depreciation, and often gives different numbers than book depreciation. Those rules change, so check with a tax professional. Leah Books keeps book and tax depreciation side by side for each asset in its fixed asset register.

The Chart of accounts screen in the Leah Books sample books, for the sample company Evergreen Landscaping (opens the full-size screenshot)
In the Chart of accounts, Equipment (1500) and Accumulated Depreciation (1510) sit together under Fixed assets, and Depreciation (6960) is an operating expense.

Try it in Leah Books

  1. Open Reports > Balance sheet and find your fixed assets and Accumulated Depreciation, if you have any.
  2. Go to Accountant > Fixed assets and click Add asset. Enter a mower costing $12,600 with a $600 salvage value, straight-line method and a useful life of 5 years. Notice the tax fields are separate from the book fields.
  3. Go to Accountant > Manual journals and click Use next to the Depreciation template. Look at the debit to Depreciation and the credit to Accumulated Depreciation, then post it.
  4. Open Reports > Balance sheet again. Your equipment hasn't changed, but Accumulated Depreciation grew, so book value fell by the same amount.

Key terms

Fixed asset
Property or equipment bought to use in the business for more than a year.
Capitalize
Record a purchase as an asset instead of an expense, then depreciate it over its useful life.
Depreciation
Spreading the cost of a fixed asset over the years it is used.
Salvage value
What you expect an asset to be worth at the end of its useful life.
Useful life
How long the business expects to use an asset.
Accumulated depreciation
The total depreciation recorded on an asset so far; a contra-asset with a credit balance.
Book value
An asset's cost minus its accumulated depreciation.

Check what you learned

Pick an answer to see if it's right and why. Nothing is saved or sent.

Question 1 of 4A trailer costs $9,000, has a $1,000 salvage value and a 4-year life. What is the straight-line depreciation per year?
Question 2 of 4Which account is credited when monthly depreciation is recorded?
Question 3 of 4After 3 years, the $12,600 mower has $7,200 of accumulated depreciation. What is its book value?
Question 4 of 4Why is a fixed asset capitalized and depreciated instead of expensed when bought?